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Nordic Pulp & Paper Research Journal

The international research journal on sustainable utilization of forest bioresources

Editor-in-Chief: Lindström, Tom

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Volume 34, Issue 4


Suitability of eight years kadam tree (Neolamarckia cadamba) in chemical pulping

M. Misbahuddin
  • Corresponding author
  • Pulp and Paper Division, Bangladesh Forest Research Institute, P.O. Box 273, Chattogram-4000, Bangladesh
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/ D. Biswas / U. Roy
Published Online: 2019-11-06 | DOI: https://doi.org/10.1515/npprj-2019-0041


Kadam is a fast growing tree species in Bangladesh. The main aim of this study is to observe the influence of tree age of kadam on chemical pulping. In this research 8, 18 and 30 years old kadam wood were pulped under different active alkali of 16, 18 and 19 % maintaining 25 % sulphidity and its effect on chemical composition, kappa number, pulp yield and delignification was investigated. The result shows that the content of extractive, lignin, alpha-cellulose and hemicellulose increase to different content along with the increase of tree age. There are also some differences of pulping properties with different tree age. Pulp yield of 8 years old kadam is higher than other ages of kadam trees. The hand sheets were made and the physical strength properties likely tear, tensile and burst were evaluated at two freeness level. The pulps produced from 8 year kadam tree obsessed reasonable strength properties. These could be used for producing moderate quality writing, printing and wrapping papers. Pulp wood of 8 years kadam is more suitable for pulping, compared to that 18 and 30 years.

Keywords: age group; kadam; kappa number; kraft pulping process; pulp yield


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About the article

Received: 2019-05-06

Accepted: 2019-07-18

Published Online: 2019-11-06

Published in Print: 2019-11-18

Conflict of interest: The authors declare no conflicts of interest.

Citation Information: Nordic Pulp & Paper Research Journal, Volume 34, Issue 4, Pages 417–421, ISSN (Online) 2000-0669, ISSN (Print) 0283-2631, DOI: https://doi.org/10.1515/npprj-2019-0041.

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